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Identification method and identification device on basis of hand vein images

A vein image and identity recognition technology, applied in the computer field, can solve the problem of low recognition accuracy and achieve the effect of improving the accuracy

Active Publication Date: 2013-08-07
BEIHANG UNIV
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Problems solved by technology

[0004] However, the identification accuracy rate is not high when using the existing technical methods for identification

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  • Identification method and identification device on basis of hand vein images
  • Identification method and identification device on basis of hand vein images
  • Identification method and identification device on basis of hand vein images

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Embodiment Construction

[0062] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0063] Veins are blood vessels in the circulatory system that carry blood back to the heart. Most veins carry blood with low levels of oxygen and high levels of carbon dioxide. Veins carry blood from body tissues back to the heart. The dorsal hand vein is a vein distributed on the back of the hand. There are obvious differences in the distribution...

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Abstract

The invention provides an identification method and an identification device on the basis of hand vein images. The identification method includes acquiring a hand vein image of a sample; acquiring an adjacent matrix corresponding to a structural feature graph of the hand vein image of the sample; acquiring graph distances from the structural feature graph of the sample to structural feature graphs of various registered samples according to the adjacent matrix corresponding to the structural feature graph of the sample and adjacent matrixes corresponding to the structural feature graphs of the various registered samples in a database; and acquiring the registered sample with the minimum graph distance among the graph distances from the structural feature graph of the sample to the structural feature graphs of the various registered samples so as to determine the identity of the sample. The identification method and the identification device have the advantages that as the adjacent matrix comprises position information of various key points in the structural feature graph of the hand vein image and information of the distances among the various key points, the uniqueness of the hand vein image can be embodied effectively, and the identification accuracy on the basis of the hand vein image can be improved.

Description

technical field [0001] The invention relates to computer technology, in particular to an identity recognition method and device based on a hand dorsal vein image. Background technique [0002] With the development of science and technology, the use of biometrics for identification has developed rapidly. [0003] In the prior art, identity recognition is carried out through the image of the vein on the back of the hand. First, the image of the vein on the back of the hand to be identified is binarized and thinned into a skeletal image with a width of one pixel, and the intersection and end point of the vein are determined. The coordinates of the end point are matched with the coordinates of the intersection point and the coordinates of the end point of the dorsal hand vein image in the registered user database to obtain the matching result, and the identity information of the image to be recognized is determined according to the matching result. [0004] However, the identif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
Inventor 黄迪朱向荣王蕴红
Owner BEIHANG UNIV
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